!供应/维修/收购S331A测量仪S331A s331d 特点: ·准确的回程损耗/SWR测量 ·可精确的测试传输线和天线 ·免受现场RF干扰 ·距离错误窗口显示功能(S120A,S251A/B) ·损耗/收益存放(S114B,S332B) ·可选瓦特计 ·可选内置T型连接器(S251A/B) ·合成器精确到75ppm 技术指标 Model S331A Frequency range 25 to 3300MHz(S331A) 25 to 4000MHz(S400A) Freqeuncy accuracy(CW mode) 75ppm Frequency resolution 100kHz Immunity to interfering RF **s up to^*2 -15dBm Return loss SWR